Pirn-bobbin-winding machine



Oct. 26 I926. 1,604,246

K. TOYODA.

PIRN BOBBIN WINDING MACHINE Filed May'15, 1926 2 Sheets-Sheet l IVENTOR. h V bcdw a d By ATTORNEY.

Oct. 26 1926. l,6@4,f246 K. TQYODA PIRN-BOBBIN WINDING MACHINE Filed May15, 1926 v 2 Sheets-Sheet 2 I v H 1 N VEN TOR.

A 'I'TORNEY.

Patented Oct. 26, 1926.

UNITED STATES KIICHIRO TOYODA, OF NAGGYA, JAPAN.

1 PIRN-BOBBIN-WINDING Application filed Kay 15, 1926. Serial No.109,898.

My invention relates to a pirn bobbin winding machine of ring orclrcular form.

The object of the present invention is to improve and simplify theconstruction and z-irrangement of winding machines of this type tothereby increase the winding power whilst decreasing the floor space perspindle required for installing the machine.

I arrange a plurality of bobbins around and in contact with theperiphery of a rotating friction disc, each bobbin spindle beingsupported at the'upper end by an upper ring frame and at the lower endby a lower ring frame, and all bobbins are simultaneously rotated by therotation of the friction disc, so as to effect the winding operation byfeeding the yarn passing through a guide hook fixed to a traversing ringframe, which ring frame is arranged between the upper and lowersupporting ring frame and which is raised and lowered being driven fromthe vertical shaft of the rotating friction disc. Each bobbin spindle isarranged in such a manner that it is automatically lifted slowly duringthe winding operation and is finally withdrawn from the lower supportingring frame upon the completion of the Winding operation.

In the accompanying drawings in which have illustrated my invention,Fig. 1 is a vertical sectional elevation of the Winding machineembodying the invention, 5 Fig. 2 a plan thereof one-half of the upperstructure being omitted to show the driving gear.

Fig. 3 an enlarged detail view showing one of the bobbins and a part ofthe rotating friction disc, and

Fig. 4 a view seen from left of Figure 3,

Figs. 5, 6 and 7 are enlarged sectional elevation, plan, and crosssection, respectively, of one of the bearing blocks mounted 0n the lowersupporting ring frame.

On the standard 1 is mounted a lower supporting ring frame 2. J ournaledin the supporting arm of the ring frame 2 at the center thereof is avertical shaft 3 which is conveniently supported in the thrust bearing 3shown in Fig. 1. The shaft 3 is pro vided with fixed and loose pulleys 4near its lower end and is connected to a. suitable source of power. Tothe up er end of the shaft 3 is secured a friction isc 5 which is formedwith a conical flange 6, which as 'ing operation. spindle 12 is heldslightly inclined toward shown in cross section has a curved outersurface.

To the horizontal annular flange 7 of the ring frame 2 are securedupright brackets 8 which carry at their upper ends an upper supportingring frame 9.- Radial arms 10 are secured to this frame 9, each beingprovided with a bearing hole 11 for receiving the upper end of a bobbinspindle 12. The

lower end of the spindle 12 is slidably mounted in the horizontal flange7 of the lower ring frame 2 extending through a central bore in thebearing block 13 mounted on said flange 7. The bobbin 14 mounted on thespindle 1.2 is held in frictionally contact with the circumference 6 ofthe friction disc 5, whereby a winding motion is imparted to the bobbin.A plurality of bobbins are arranged around and in contact with the disc-5, and all bobbins are revolved simultaneously by the rotation of saiddisc, whereby the yarn winding operation is effected. A means isprovided for lifting the bobbins slowly at a constant rate during thewinding operation. Another means is provided whereby the bobbin isautomatically disengaged from the friction disc 5 when the lower end ofthe spindle 12 is lifted and withdrawn from the bore in the bearingblock 13 upon the completion of the wind- For these purposes, the

the direction of rotation of the disc 5, which is indicated by the arrowshown in Figure 4, so that the bobbin 14 may be readily lifted axiallyduring its rotation. As shown 1n detail in Figures 5, 6 and 7, thebearing block 13 for the spindle carries a wooden bearing member 28having a bore for receiving the spindle, and on the outer side 1t isformed with an inclined cavity 30 in which the lower end of the spindle12 is adapted to rest when lifted out from the bore 29, the bobbin beingthus in the disengaged position.

Surrounding the standard 1 there is provided a holding seat 15 on whichcheese, cop yarn, or hank yarn may be placed. From the cop A, the yarnis fed to the bobbm passing through the guide 16 and the guide hook 17,which are mounted on the ring frame 2,

"and through another guide hook 19 which is supported by the traverseframe 18 of ring vertical shaft 3 is a worm 20 meshing with a worm-wheel21, the latter carrying a cam 22. The lever 23 pivoted at one end to thestandard 1 is in operative engagement with said cam 22, preferably bymeans of a roller. At its other end the lever 23 is pivoted to acrosshead or collar 24 which is slidably mounted on the shaft 3, andthis collar 24 is connected to the traverse ring frame 18 by means ofrods 25. By the above-mentioned mechanism. the traverse frame 18carrying the guide hooks 19 is raised and lowered upon the rotation ofthe vertical shaft 3, thus resulting in the yarn being fed under aregular tension.

At the bottom of the machine, beneath the holding seat 15, there isprovided a round box for the reception of empty bobbins, while at thetop of the machine on the upper ring frame 9 is mounted a box 27 for thereception of the loaded or full bobbins.

As will be seen from the foregoing description, in the winding machineaccording to this invention which is' made in ring or circular form, andin which many bobbins are arranged around and in contact with therotating friction disc 5, an increased.

efliciency may be obtained, whilst the compactness of this form ofconstruction enables the machine to be installed occupying "a smallerfloor space per spindle as compared with the ordinary bobbin windingmachine. the outer surface of the flange 6 of the rotating disc 5, thebobbin is engaged by said disc at one point only, so that wear of theyarn is decreased to a minimum, rendering the machine applicable to thewinding of any dyed yarn. Owing to the slight tilting of the bobbinspindle in the direction of rotation of the friction disc, the bobbin isreadily lifted slowly during the winding Because of the curved ormationof' operation, so that the winding operation may be accomplishedproducing a minimum breakage of the yarn and enabling the yarn to bewound tightly on the bobbin.

What I claim is 1. A pirn bobbin winding machine comprising a rotatingdisc coaxially mounted on the vertical driving shaft, a plurality ofbobbins arranged around and in contact with the periphery of saidrotating disc, an upper ring frame for supporting the upper end of thebobbin spindle, a lower ring frame for supporting the lower end of thebobbin spindle, a traversing frame arranged between said upper and lowerring frame, means for imparting to said traversing frame upward anddownward movement upon rotation of the driving vertical shaft, and meansfor slowly lifting the bobbins during the winding operation, therebycausing the lower ends of the bobbin spindles to be withdrawn from thelower ring frame upon the completion of the winding operation.

2. A pirn bobbin winding machine as specified in claim 1, wherein saidrotating disc is provided with an annular flange having a curved outersurface.

3. A pirn bobbin winding machine as specified in claim 1, wherein thebobbin spindle is slightly inclined to the vertical in the direction ofrotation of said rotating disc.

4. A pirn bobbin winding machine as specified in claim 1, comprisingbearing blocks mounted on said lower ring frame, each block having acentral bore for the bobbin spindle and a cavity for receiving andretaining the lower end of the bobbin spindle upon the latter havingbeen withdrawn from said central bore upon completion of the windingoperation.

In testimony whereof I afiix my signature.

KIICHIRO TOYODA.

